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Finding the Fourth Proportional to 90,424.17, 135,605.04 and 37,101.09

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Solution

The fourth proportional to 90,424.17, 135,605.04 and 37,101.09 is: 55,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,424.17 : 135,605.04 = 37,101.09 : x
  2. Step 2: Convert to fraction form
    90,424.17/135,605.04 = 37,101.09/x
  3. Step 3: Cross multiply
    90,424.17x = 135,605.04 × 37,101.09
  4. Step 4: Simplify right side
    90,424.17x = 5,031,094,793.49
  5. Step 5: Solve for x
    x = 5,031,094,793.49/90,424.17
  6. Step 6: Final answer
    x = 55,638.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.